Oil-burner.



PATENTED APR. 17, .1906.

R. G. KIRKWOOD.

OIL BURNER.

APPLICATION FILED 313.23. 1905.

2 SHEETS-SHEET 2,

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trnrra s Arne tron.

Specification of Letters Patent.

Patented April 17. 1906.

Application filed February 28, 1905- Serial No. 246,980.

To a whom. it may conderit:

Be it known that I, ROBERT G. KIRKWOOD,

a citizen of the United States, residing at 23 iication.

My invention relates to lmprovements 1n oil-burners, and has for its object the' rovision of 'rneans for controlling and regu atin the feed of oil and air or steam as fuel to e nozzle of the burner, the control and regulation being effected by one and the same movement of a-lever and the-feed of the different elements of the fuel bein increased or decreased in proportion of the regulatingdever. In attaining these objects I provide a com act,-durable, and easily-operated valve mec anism.

The invention consists in a combined highpressure oil and air valve mechanism with suitable inlets and a common outlet controlled and regulated by a single lever, in the combination with such a mechanism of a second valve or gate for a low pressure of air to the burner, and in certain novel features of constructions and combinations and arrangements of parts, as herein described, more articularly pointed out .in theclaims, an as illustrated in the accompanying drawings.

I have described the invention as using 011 and air; but it will be understood that other elements than those enumerated may be employed.

Fi re 1 is a vertical central sectional view Fig. 2 is a side view in elevation of the valve-stem. Fig. 3 is anend view of the adjustable valvestem lever. Fig. 4 is a detail sectional view of the air-valve seat, and Fig. 5 is an inner end view of said seat as seen from the left in Fig. 4. Fig. 6 is a view showing a furnacenozzle in section with my improved burner connected thereto in operativeposition. Fig. 7 is a side view of the oil-Valve head.

Referring articiilarly to Fig. l of the drawings, th'e glo e 1 is a hollow casting providedwith openings 2 and 3, forming air and oil inletsjespectively, said 0 enings having screwthreads for reception ofsupplyipes.

The interior of the globe is ormed with two integral bored-out arms4 and 5, the arm 4. forming an oil-passage from the oil-inlet and arm 5 serving as a guide for the valvewith t e movement stem 6. A screw-thread extension 7 pro- 'ects from the casing 1, having. interior threads inwhich is screwed the plug or sleeve 8, to which the nozzle 9 is secured by screwthreads, as shown, in chamber 10 in the sleeve. On its end adjacent the interior of the globe the sleeve 8 has a'tapered bore 11, forming an air-valve seat which communicates with the chamber 10 by a plurality of assages 12. The plug 13, preferably formed om a headless screw, is passed through the assage 14 of the sleeve 8 and secured therein y'the screwthreads'15. This plug forms the oil-valve head, as will be described. v

v The valve-stem 6 has a longitudinal bore 16 and. an an led portion 17 leading from the end of the ore 16, opening into the oil-inlet pipe 4. At its outer end the bore 16 increases in diameter, forming atapering opening 18 complementary to and for the reception of the tapered end 19 of the plug 13, thus forming the oil-valve for the burner. A ta pered head 20 is fashioned on the valve-stem 6, adapted to fit in the tapered seat or bore 11 of the sleeve 8, forming the air-valve for the burner. As shown, the valve-stem 6 islocated in and guided .by the arm 5. Sleeve 21 surrounds the stem and is located in an eX- tension 22, formed at the end of the globe o pposite the nozzle. A gland 23 and space 24 are provided for packing to prevent leakage.

On the exterior screw-threads 24 of the extension 22 I locate the adjusting and regulating lever 25-, which is formed with a threaded sleeve portion 26 to engage the threaded extension 22. A bearing-arm 27, projected from the sleeve 26, receives the end 28 of the valve-stem 6, and said stem is loosely se cured to said arm and thus to the lever 25 by I .nut 29 on the threaded end 30 of the stem;

but it will be understood that the valve-stem is capable of turning in the bearing-arm 27 A set-screw 31 may belocated on a portion of the globe adjacent finger 32 of the lever 25 and in the path of movement of said finger to provide a stop for the lever 25 after making one turn, whlch movement is sufficient for feeding the proper amount of oil and air to the burner. I

The above-described mechanism controls the supplyof compressed air and oil under pressure to the burner. In addition to this, I employ a feed of air to the burner at a lower pressure to furnish ox gen in sufiicient quantity to the mouth 0 the burner or nozzle thereof to burn the atomized oil and air after they are forced through the nozzle 9 and nozzle 33 into the furnace.

hS seen in Fig. 6, the burner proper is secured by screw-threads 34 to the nozzle 33, which latter may be secured to'the furnace by bolts passed through holes 35. The mixed oil and air under high pressure emerges at the mouth of the nozzle 9, where the elements are atomized and carried with the air-blast into' through passages 12, chamber 10, and nozzle 8) to the furnace. The same movement of the valve-stem also opens the air-valve at and 11, and compressed air enters the globe 2, passes through the tapered bore 11, and mingling with the oil therein the two elements pass through passages 12 and chamber 10 to the nozzle. At the mouth of the nozzle 9 the force of the compressed air atomizes the oil, and the low-pressure air-blast from extension 36,'when gate 37 is open, entering nozzle 33 carries the atomized mixture from the mouth of the nozzle 9 into the furnace for combustion.

I It will be observed that I combine the compressed air and oil in the openings 12 and chamber 10, mingling the air and oil, so that as they pass the end of the nozzle 9 the expanding air easily and thoroughly atomizes the oil. The atomized oil is then caught by blast of air at a low pressure in the L-shaped nozzle 33 and carried into the furnace, the.

do not limit myself to the specific structure shown herein, as modifications, alterations,

- and changes may be made without departing from the scope of my cla1ms.

What I claim as new, and desire to secure by Letters Patent, 1s 1 r a u n u n 1. lhc combination with a casing-having a valve-head and a valve seat surrounding said head, of a movable Hollow stem having a valve-seat and v'alvehead to fit said complementary me1nbers,.and-means for operatlng said movable stem.

2. The combination of a casing having a stationary valve -head and valve-seat sur rounding said head, a hollow movable stem having a valve-seat and valve-head complementary thereto, an operating-lever, a nozzle connected with said valves, and a second nozzle having means to regulate the flow ofv air to the burner, all combined in an oilburner, substantially as described.

3. Thecombination in a valve device of a hollow casting having a plurality of inlets, a hollow movable stem therein formed witha the inlets,-a sleeve secured in the casting, a projection from said sleeve adapted to fit said valve-seat, a valve-seat in said sleeve, a valve-head on said stem adapted to fit said valve-seat, and means for operatin said movable valve-stem to simultaneousy open or close said valves; I

4. In a valve device the combination with a hollow casting having a plurality of inlets of a movable hollow stem formed with a valve-seat and communicating with one of said inlets, a sleeve witha valve-seat secured in the casting, a screw-plug in said sleeve valve-seat and communicating with one of adapted to fit said valve-seat in the stem, a

head on the stem to fit the sleeve valve-seat, and means for operating the movable valvestem.

51 A casting having a plurality of inlets, a hollow movable stem formed with a valveseat, a sleeve in the casting having a projection adapted to fit said seat, and a valve-seat surroundin said projection, a valve-head on the stem a apted to fit the sleeve valveseat, a chamber formed in the sleeve, passages connecting said chamber and adjacent valve seat, and an operatinglever.

6. In a valve a hollow casting having a plurality of inlets, an integral guide-sleeve within said casting inclosinga hollow movable stem, a valve-head and valve-seat on said stem, an integral hollow arm in the casting connecting the hollow stem with one of the inlets, a fixedvalve member in the casing v adapted to fit said seat S1Ui""-111(iing said valve member, and 'avalve-seat adapted to receive said valve-head.

' 7. A valve-casing having a plurality of inlets, a movable hollow stem communicating with one of said inlets having a valve-head and valve-seat, a valve-seat .and valve-head in the casing adapted to fit said valve-head and seat on the stem said valve-seat surrounding the valve-head in the casing, and means for operating said stem.

8. A valve-easing having a plurality of La lets, a movable hollow stem communieatin withone of said mlets having a valveheao and valve-seat, a sleeve secured in said casing having a valve-seat and'valvahead adapted to fit said valve head and seat, and means for operating said stem. 9. A. valve-casing having a plurality of hollow movable stem siaoso lets, a hollow movable stem having a valvehead and valve-seat, a branch pipe connecting one of said inlets with the hollow stem, a sleeve secured-in the casing'having a valvehead and valve seat to receive said stem. valve seat and head, a chamber at one end of said sleeve, and passages connecting said chamber with the valve-seat therein.

10. A valve-casing having a plurality of inlets, a hollow movable stem having a valvehead and valve-seat at one end and an operating-lever at the other, a valve-seat and valvehead in the casing to receive said valve head and seat, said lever being movable to operate the valve-stem;

' 1 1. A valve-casing having a plurality of inlets, a hollow, movable stem having a valvehead andvalve-seat at one end, a valve-seat and valve-head in the casing to receive said valve head and seat, and a lever connected to said stem having bearing on the casing.

12. In an oil-burner, the combination of a valve-casing having a lurality of inlets, a

llaving a valve-head and valve-seat at one end, a sleeve in the easing having a valve-seat and valve-head to receive said valvehead and seat, a nozzle in the sleeve, and means for operating said valvestem and thereby simultaneously control said valves.

13. In an oil-burner the combination of a valve-casing having a plurality of inlets, a hollow movable stem havin a valve head and seat at one end, a sleeve having a valveseat and valve-head adaptedto receive said stem'valve head and seat, a chamber formed in the sleeve having communication with the valve-seat in the sleeve, and a nozzle connected to said chamber.

14. In an oil-burner thecombination of a valve-casing having a plurality of inlets, a hollow movable stem having an air-valve head and an oil-valve seat at one end, a sleeve in the casing having a valve-seat and a valve-stem head to receive said head and seat, a chamber in the. sleeve and a perforated partition between said chamber and valve-seat, and a nozzle connected in said chamber.

15. In an oil-burner the combination of a casing having a plurality of inlets,a movable hollow stem therein iaving an air-valve head and an oil-valve seat at one end,'a sleeve in the casing having a valve-seat and a valvehead' to receive said stem head and seat, a branch pipe within the casing 0011-: necting'the oil-inlet and hollow valve-stem, a nozzle in the sleeve, and a lever connected to said stem.

16. In an oil-burner the combination with a casing having a valve and valve-seat therein, a nozzle connected to said casing, of a hollow stem having a valve-head andvalve-seat thereon, and a lever connected to said stern for moving the same whereby said valves are regulated proportionately.

17. The combination 1n an oil-burner of a casing having a plurality of valves therein, a nozzle connected with'said valves, a movable valve-stem, a lever having a threaded sleeve portion engaging said casing, and an exten sion on said sleeve forming a bearing for said stem, whereby the valves; are operated by said lever.

18. The combination with a casing having a valve-seat and valve-head formed therein,

a stem having a valve-head and valve-seat complementary thereto, and a lever connected to said stem for moving the same.

19. The combination wi h a casing having a valve-seat and valve-head therein, a stem having a valve-head and valve-seat, alever having a threaded portion engaging the easing, and an extension on the lever forming a bearing for said stem, whereby the valves are operated simultaneously.

20. The combination in an oil-burner, of a casing having a valvehead and a valve-seat surrounding said head and both members fixed therein; a nozzle adjacerft said head and seat a hollow movable stem provided with a valve-seat and valve-head; and a see- 0nd nozzle havin means therein for re ulating the draft therethrough.

21. Thecombination of a casing having an oil-valve head and an air-valve seat surrounding said head, and a nozzle, means for introducing oil and air therethrough under pressure; a movable hollow stemhaving an oil-valve seat and an air-valve head thereon and operating means therefor; and a second nozzle inclosing. the first or casing nozzle having-a lower pressure therethrough, and means for regulating said pressure.

1 22. The combination in an oil-burner of a casing havinga valve-head and a valve-seat surrounding'said head, a nozzle, and means for introducing oil and air there'through un der pressure; a movable hollow stemmrith a valve-seat and valve-head thereon, and a second nozzle having a gate-valve therein to regulate the flow of air under pressure.

In testimony whereof I do affix my signa ture in presence of two subscribing witnesses.

ROBERT G. KIRKWOOD.\ Witnesses:

Ms. W. DRAPE, GEO. A. LINN.- 

